which a person is forced to produce scientific writings in great amounts creates a danger of intellectual superficiality,” he said.75
As a result, the happenstance that landed him on a stool at the Swiss Patent Office, rather than as an acolyte in academia, likely reinforced some of the traits destined to make him successful: a merry skepticism about what appeared on the pages in front of him and an independence of judgment that allowed him to challenge basic assumptions. There were no pressures or incentives among the patent examiners to behave otherwise.
Maurice Solovine, a Romanian studying philosophy at the University of Bern, bought a newspaper while on a stroll one day during Easter vacation of 1902 and noticed Einstein’s advertisement offering tutorials in physics (“trial lessons free”). A dapper dilettante with close-cropped hair and a raffish goatee, Solovine was four years older than Einstein, but he had yet to decide whether he wanted to be a philosopher, a physicist, or something else. So he went to the address, rang the bell, and a moment later a loud voice thundered “In here!” Einstein made an immediate impression. “I was struck by the extraordinary brilliance of his large eyes,” Solovine recalled.76
Their first discussion lasted almost two hours, after which Einstein followed Solovine into the street, where they talked for a half-hour more. They agreed to meet the next day. At the third session, Einstein announced that conversing freely was more fun than tutoring for pay. “You don’t have to be tutored in physics,” he said. “Just come see me when you want and I will be glad to talk with you.” They decided to read the great thinkers together and then discuss their ideas.
Their sessions were joined by Conrad Habicht, a banker’s son and former student of mathematics at the Zurich Polytechnic. Poking a little fun at pompous scholarly societies, they dubbed themselves the Olympia Academy. Einstein, even though he was the youngest, was designated the president, and Solovine prepared a certificate with a drawing of an Einstein bust in profile beneath a string of sausages. “A man perfectly and clearly erudite, imbued with exquisite, subtle and elegant knowledge, steeped in the revolutionary science of the cosmos,” the dedication declared.77
Generally their dinners were frugal repasts of sausage, Gruyere cheese, fruit, and tea. But for Einstein’s birthday, Solovine and Habicht decided to surprise him by putting three plates of caviar on the table. Einstein was engrossed in analyzing Galileo’s principle of inertia, and as he talked he took mouthful after mouthful of his caviar without seeming to notice. Habicht and Solovine exchanged furtive glances. “Do you realize what you’ve been eating?” Solovine finally asked.
“For goodness’ sake,” Einstein exclaimed. “So that was the famous caviar!” He paused for a moment, then added, “Well, if you offer gourmet food to peasants like me, you know they won’t appreciate it.”
After their discussions, which could last all night, Einstein would sometimes play the violin and, in the summertime, they occasionally climbed a mountain on the outskirts of Bern to watch the sunrise. “The sight of the twinkling stars made a strong impression on us and led to discussions of astronomy,” Solovine recalled. “We would marvel at the sun as it came slowly toward the horizon and finally appeared in all of its splendor to bathe the Alps in a mystic rose.” Then they would wait for the mountain cafe to open so they could drink dark coffee before hiking down to start work.
Solovine once skipped a session scheduled for his apartment because he was enticed instead to a concert by a Czech quartet. As a peace offering he left behind, as his note written in Latin proclaimed, “hard boiled eggs and a salutation.” Einstein and Habicht, knowing how much Solovine hated tobacco, took revenge by smoking pipes and cigars in Solovine’s room and piling his furniture and dishes on the bed. “Thick smoke and a salutation,” they wrote in Latin. Solovine says he was “almost overwhelmed” by the fumes when he returned.“I thought I would suffocate. I opened the window wide and began to remove from the bed the mound of things that reached almost to the ceiling.”78
Solovine and Habicht would become Einstein’s lifelong friends, and he would later reminisce with them about “our cheerful ‘Academy,’ which was less childish than those respectable ones which I later got to know at close quarters.” In response to a joint postcard sent from Paris by his two colleagues on his seventy-fourth birthday, he paid tribute to it: “Your members created you to make fun of your long-established sister Academies. How well their mockery hit the mark I have learned to appreciate fully through long years of careful observation.”79
The Academy’s reading list included some classics with themes that Einstein could appreciate, such as Sophocles’ searing play about the defiance of authority,
The most influential of these, Einstein later said, was the Scottish empiricist David Hume (1711–1776). In the tradition of Locke and Berkeley, Hume was skeptical about any knowledge other than what could be directly perceived by the senses. Even the apparent laws of causality were suspect to him, mere habits of the mind; a ball hitting another may behave the way that Newton’s laws predict time after time after time, yet that was not, strictly speaking, a reason to believe that it would happen that way the next time. “Hume saw clearly that certain concepts, for example that of causality, cannot be deduced from our perceptions of experience by logical methods,” Einstein noted.
A version of this philosophy, sometimes called positivism, denied the validity of any concepts that went beyond descriptions of phenomena that we directly experience. It appealed to Einstein, at least initially. “The theory of relativity suggests itself in positivism,” he said. “This line of thought had a great influence on my efforts, most specifically Mach and even more so Hume, whose
Hume applied his skeptical rigor to the concept of time. It made no sense, he said, to speak of time as having an absolute existence that was independent of observable objects whose movements permitted us to define time.“From the succession of ideas and impressions we form the idea of time,” Hume wrote. “It is not possible for time alone ever to make its appearance.” This idea that there is no such thing as absolute time would later echo in Einstein’s theory of relativity. Hume’s specific thoughts about time, however, had less influence on Einstein than his more general insight that it is dangerous to talk about concepts that are not definable by perceptions and observations.82
Einstein’s views on Hume were tempered by his appreciation for Immanuel Kant (1724–1804), the German metaphysician he had been introduced to, back when he was a schoolboy, by Max Talmud. “Kant took the stage with an idea that signified a step towards the solution of Hume’s dilemma,” Einstein said. Some truths fit into a category of “definitely assured knowledge” that was “grounded in reason itself.”
In other words, Kant distinguished between two types of truths: (1) analytic propositions, which derive from logic and “reason itself ” rather than from observing the world; for example, all bachelors are unmarried, two plus two equals four, and the angles of a triangle always add up to 180 degrees; and (2) synthetic propositions, which
